Multiple studies [1]}, [2]} have shown that in large environments it is possible to significantly reduce the state space to comprise only relevant information for the agents' decision making. This reduction can be naturally applied to environments like autonomous driving [3]}, where an agent only needs to be informed about cars in its local view. This property of locality can also be applied to communication [2]}, [5]} by the same reasoning. Ideally, a world model should have a locality property, so that if the environment allows us to define neighbours of the agent, we want to communicate only with them during execution.
